Fig. 5

Aged female mice supplemented with L. reuteri strain BM36301 display healthy skins. a Hair re-growth experiment on C57BL/6 mice consuming L. reuteri strain-treated water or control water. A 2 × 2 cm wide area of skin was clearly shaved and the hair re-growth was examined a week later. b Hair follicle (HF) counts were collected from the skin section samples of mice fed with either control or L. reuteri strains. Five microscopic images at 400× resolution from 5 to 8 mice were counted. * indicates p = 0.023 from the t-test in comparison with the control group (female lanes 1 and 2). c Skin sections from control (left) and BM36301-treated (right) mice were stained with Hematoxylin and Eosin to show skin tissue layers and HFs as labeled. Photos were taken at 100× resolution; the bar indicates of 100 μm in length for scale